<template>
    <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区 -->
    <el-card>
        <el-row :gutter="20">
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button type="primary" @click="addGoods">添加商品</el-button>
            </el-col>
        </el-row>
        <!-- 表格区 -->
        <el-table :data="goodsList" border stripe>
            <el-table-column type="index" label="#"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
            <el-table-column label="创建时间" prop="add_time" width="140px">
                <template slot-scope="scope">
                    {{scope.row.add_time | formatTime('YYYY-MM-DD HH:mm:ss')}}
                </template>
            </el-table-column>
            <el-table-column label="操作" width="130px">
                <template slot-scope="scope">
                    <el-button type="primary" icon="el-icon-edit" size="mini" @click="editGoods(scope.row.goods_id)"></el-button>
                    <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>
        <!-- 分页 -->
        <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[5, 10, 20, 50]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total" background>
        </el-pagination>
    </el-card>
    <!-- 编辑对话框 -->
    <el-dialog
    title="提示"
    :visible.sync="editDialogVisible"
    width="50%">
    <span>这是一段信息</span>
    <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editDialogVisible = false">确 定</el-button>
    </span>
    </el-dialog>
    </div>
</template>

<script>
    export default {
        data() {
            return {
                // 查询参数对象
                queryInfo:{
                    query:'',
                    pagenum:1,
                    pagesize:10
                },
                // 商品列表
                goodsList:[],
                // 总数目
                total:0,
                // 控制编辑对话框的显示
                editDialogVisible:false,
            }
        },
        created() {
            this.getGoodsList()
        },
        methods: {
            // 获取商品列表
            async getGoodsList(){
                let {data:res}=await this.$http.get('goods',{params:this.queryInfo})
                if(res.meta.status!=200) return this.$message.error('获取商品列表失败！')
                this.goodsList=res.data.goods
                this.total=res.data.total
            },
            // 分页选择页码
            handleSizeChange(newSize){
                this.queryInfo.pagesize=newSize
                this.getGoodsList()
            },
            // 分页的页码发生变化
            handleCurrentChange(newPage){
                this.queryInfo.pagenum=newPage
                this.getGoodsList()
            },
            // 删除商品
            async removeById(id){
                let result= await this.$confirm('是否删除该商品?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err=>err)
                if(result=='confirm'){
                    let {data:res}=await this.$http.delete('goods/'+id)
                    if(res.meta.status!=200) return this.$message.error('删除商品失败！'+res.meta.msg)
                    this.$message.success('删除商品成功！')
                    this.getGoodsList()
                }
            },
            // 添加商品
            addGoods(){
                // 跳转到添加goods的组件add
                this.$router.push('/goods/add')
            },
            // 编辑商品
            editGoods(id){
                 /* 跳转到添加goods的组件edit
                    注意：编程式导航中以params传递参数则要加上name，若改为path则无法传递
                 */
                this.$router.push({ name:'edit', params: { id: id }})
            },
        },
    }
</script>

<style scoped>

</style>